Dumbbell



FIG. 1 is a top front right side perspective view of a dumbbell according to a first embodiment.

FIG. 2 is a front view of the dumbbell of FIG. 1 .

FIG. 3 is a rear view of the dumbbell of FIG. 1 .

FIG. 4 is a right side view of the dumbbell of FIG. 1 .

FIG. 5 is a left side view of the dumbbell of FIG. 1 .

FIG. 6 is a top front right side perspective view of a dumbbell according to a second embodiment.

FIG. 7 is a front view of the dumbbell of FIG. 6 .

FIG. 8 is a rear view of the dumbbell of FIG. 6 .

FIG. 9 is a right side view of the dumbbell of FIG. 6 ; and,

FIG. 10 is a left side view of the dumbbell of FIG. 6 . 

CLAIM The ornamental design for a dumbbell, as shown and described. 